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Finding the Fourth Proportional to 29,631.78, 40,892.49 and 17,692.89

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Solution

The fourth proportional to 29,631.78, 40,892.49 and 17,692.89 is: 24,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,631.78 : 40,892.49 = 17,692.89 : x
  2. Step 2: Convert to fraction form
    29,631.78/40,892.49 = 17,692.89/x
  3. Step 3: Cross multiply
    29,631.78x = 40,892.49 × 17,692.89
  4. Step 4: Simplify right side
    29,631.78x = 723,506,327.40
  5. Step 5: Solve for x
    x = 723,506,327.40/29,631.78
  6. Step 6: Final answer
    x = 24,416.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.